Battery-electrode.



C. B.- SCHOENMEHL.

BATTERY ELECTRODE.

APPLICATION FILED MAY26, 191s.

1,140,403. Pamed May 25, 1915.

MII-@MQW l by being suspended cop er negatiW `copper type, y compressed fil ZRLES B. SCHENEEHL, 0F `WTERB`URY, CONNECTICUT.

BATTERY-ELECTRODE.

ineaaoe.

Application filed May 26, 1913.

T0 ali whom it 'may concer/n:

Be it known that l, CHARLEs B. SCHOEN- MEHL, citizen. of the United States, and resident of Waterbury, in the county of New Haven and State of Connecticut, have invented certain nen7 and useful improvements in a Battery-Electrode, of which the following is a specification.

My present invention refers to negative battery electrodes olf the compressed oxid o such as are commonly molded,

and belred to form an integral Electrodes this class-are now very commonly @made in what are known as plate forms and may be either rounder square as preferred. When so forme-: they are suitu ably arranJed inY attery jar alongside and intermediate et positive or zine plates, t'rorn a 'hanger usuaily connected to the cover of the f 4 It is the purpose o my present invention to produce an improved forni of negative electrode of this general type in el way to prevent its breakage during the course of manufacture and shipment and urther to increase the conductive qualities of the elec trede", and t'inaly to prevent the platee from pealing or crumbling away as in use when submerged in a condnetive solution. g f

My improved plate is preferalaiy mede of the same quaiij, ci finely ground oxid of copper scale as is new empio-ed 'for this general type of plates and in a dition there to l' employ one or more stiening members which are embedded in the surface ot the plate as will later more fuily explained.

@pon the accompanying drawings orraing a part o spendeert-ion it will be found that si ar characters ofi reference are employed to denote like or corresponding parte throughout several gares, ci' which,

Figure l, e" form oi my electrode^ of o square- View of a round a copper card negative a similar side. view y 1 er ode eonsi'ruet ention, and, E 1g. 3, is n through portion cor ance with e contrai Specification of Letters Patent.

' pressed in the machine the `squeezed 1n between the meshes of the wire Yatented Mayr/,255,19 l5.

semi meneame. l

of one ot'ethe 'said plas, better to. illustrate the relative internal construction.

From the foregoing illustration it will be apparent that either a round or a square plate or in fact a plate or bulk of compressed oxid of copper of any particular size shape or proportion may be termed in accordance with my invention.

Referring in detail to the characters of reference marked upon the drawings, 6 represents the negative electrode formed ot compressed oxid of copper and 7 the wire mesh embedded in the one side of plate and y8 the wire mesh embedded in the opposite face.

9 indicates the overlapping edge portions of the wire mesh which as will be noted are arranged to come towether around the thinner edge portions o? the plate. This construction obviously forms a protective covering or inclosure of wire mesh around the entire body of. the copper oxid so as to amply protect it from cracking, breaking or disintegrating. i

Y In practicethe two sheets of wire mesh are first placed in quantity of powdered copper oxid arranged therebetween so that when the plate is cornsaid oxid may be 1n a manner to torni a smooth finished copper oxid surface with the wire scarcely distinguishabie when the plate is formed. This wir-e, however, becomes exposed and more noticeable after the element has been used in solution, though it holds the body of the copper together lpermanently and throughout the life of the battery;

am aware that it is not broadiy new to employ reinforcing members in battery eleotrodes, but so far as know it is new to use wire mesh. embedded in and covering the operative tace or surface of compressed orid o' copper negative eiectrodes,

Having thus described my invention what l claim and desire to secure by Letters Patentis1- A plate 'form of negative electrode for primer-y batteries, comprising` a compresse the-mold with a properI g y 1,140,403 nl mass-ofi'oxid of copper, anda Wooven wire Si ed at Bridgeport in the county of* member embedded in the sides and edge sur- Fair eld and 'State of Connecticut this 19th faces of the said copper plate to inclose the day of Ma. A. D., 1913.

' mass and having a filling of oxid of copper C ARLES B. SCHOENMEHL.

' smooth.

covering the said Wire gauze to form all of Witnesses: theside; and edge portions -of the' plate v 1 z C. M. NEWMAN,

, -f l v RUTH M.'W0RDEN. 

